World Telephone Numbering Guide

Updated 2 June 2011

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Dominican Republic

+1 (809), +1 (829), +1 (849)

Number Format

Area Code:            3 digits
Subscriber Number:    7 digits
Trunk Prefix:         1
International Prefix: 011

Also see Caribbean Nations.

15 February 2010 - new +1 849 area code introduced

+1 849 began to overlay the existing +1 809 and +1 829 area codes on 15 February 2010. The new code was assigned to be active as early as 1 July 2010. Calls within the Dominican Republic already required use of 10 digits (area code plus subscriber number), therefore no transition period was required to introduce +1 849.

Sources:

Dominican Today (13 February 2010)

NANPA Planning Letter PL-387R1 (14 April 2009)

(with info courtesy Risto Nykänen)

15 December 2005 - new Tricom number ranges

Tricom introduced numerous number ranges under +1 829, all except one range is for fixed/wireline service:

Range            Service
-----            -------
+1 829 473xxxx   fixed
+1 829 535xxxx   fixed
+1 829 538xxxx   fixed
+1 829 545xxxx   fixed
+1 829 565xxxx   fixed
+1 829 567xxxx   fixed
+1 829 573xxxx   fixed
+1 829 575xxxx   fixed
+1 829 578xxxx   fixed
+1 829 581xxxx   fixed
+1 829 582xxxx   fixed
+1 829 583xxxx   fixed
+1 829 586xxxx   fixed
+1 829 588xxxx   fixed
+1 829 590xxxx   fixed
+1 829 593xxxx   fixed
+1 829 594xxxx   fixed
+1 829 595xxxx   fixed
+1 829 596xxxx   fixed
+1 829 597xxxx   fixed
+1 829 681xxxx   fixed
+1 829 687xxxx   fixed
+1 829 688xxxx   fixed
+1 829 710xxxx   mobile
+1 829 724xxxx   fixed
+1 829 971xxxx   fixed

(information courtesy Tricom)

July 2005 - +1 829 overlay area code introduced

New area code +1 829 will commence for testing July 2005, as an overlay to the existing +1 809 area code.

Calls within the Dominican Republic will be required to use a 10-digit format including area code, replacing the existing 7-digit format.

Timeline:

31 January 2005 - start of permissive use of 7-digit and 10-digit dialling within Dominican Republic.

1 July 2005 - new +1 829 area code commences service and is expected to be reachable from other nations; +1 829 555.9999 test number activated.

1 August 2005 - 10-digit dialling within the Dominican Republic is mandatory; previous 7-digit format is discontinued. This is to make way for introduction of new subscriber numbers in +1 829.

1 October 2005 - earliest date for which regular subscriber numbers for +1 829 enter into service.

Sources: NANPA Planning Letter PL-338, 2 August 2004.

Indotel announcement (9 September 2004, via ITU).

(tip courtesy Randy King)

June 2004 - Tricom number ranges

Tricom number ranges were introduced June 2004:

Number Range      Type of Service
------------      ---------------
+1 809 985 xxxx   fixed
+1 809 99x xxxx   mobile/cell

Some problems were reported in calling to the wireline/fixed numbers under +1 809 985 xxxx. Carriers in other nations should be allowing calls to these numbers.

Source: Tricom

31 May 1999 - +1 809 applies only to Dominican Republic

The Dominican Republic became the only Caribbean or Atlantic island nation to retain +1 809 as of 31 May 1999, the date at which St Vincent and the Grenadines made its new +1 784 code mandatory.

Other information

Regulator is Indotel.

Carriers include:

See list of subscriber number central office codes.

An older list of codes is available from 22 February 2002.

Also see numbering information from Indotel (via ITU).

Some updates courtesy Mark J Cuccia.

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